Gandhi Periyasamy, Aravind, Soundappan Kathirvel, Tanveer Rehman, and Amarjeet Singh. “Demographic and Clinical Factors Associated With Early Hospital Coronovirus Disease 2019 Deaths in a Low Middle Income Setting: A Record-Based Analysis of 20,641 Deaths from India”. Monaldi Archives for Chest Disease 92, no. 2 (September 14, 2021). Accessed May 21, 2024. https://www.monaldi-archives.org/macd/article/view/1890.